40404400004042 has 64 divisors (see below), whose sum is σ = 63926710493184. Its totient is φ = 19115552776320.

The previous prime is 40404400003993. The next prime is 40404400004047. The reversal of 40404400004042 is 24040000440404.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40404400004047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2796725663 + ... + 2796740109.

It is an arithmetic number, because the mean of its divisors is an integer number (998854851456).

Almost surely, 2^{40404400004042} is an apocalyptic number.

40404400004042 is a deficient number, since it is larger than the sum of its proper divisors (23522310489142).

40404400004042 is a wasteful number, since it uses less digits than its factorization.

40404400004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16043.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40404400004042 its reverse (24040000440404), we get a palindrome (64444400444446).

The spelling of 40404400004042 in words is "forty trillion, four hundred four billion, four hundred million, four thousand, forty-two".